Svelte 5: The anchor option is missing in the new mount()

[CrendKing]

Describe the problem

I was trying to upgrade my project to Svelte 5. My Svelte 4 code uses the anchor option to specify where a component is placed in the container element. I noticed the option is no longer available in the exported mount() in Svelte 5, even though it still exists in the internal _mount(). Is this intended? What's the recommended way to migrate?

Describe the proposed solution

As a workaround, currently I have to create an empty <div>, prepend to the anchor node, mount the components to the <div>, then anchor.replaceWith(...anchor.children).

Importance

would make my life easier